本集团是依托矿产资源、耐火材料、有色金属为主要产业，集采矿、冶炼一条龙进行精深加工的民营企业。集团公司的宗旨是“互惠互利，共同发展”，我们的承诺是“全心全意为客户服务”。GradeMgO (min.)SiO2(max.)CaO (max.)Fe2O3(max.)Al2O3(max.)L.O.I.B.D. (g/cm3)FM9999%0.22%0.46%0.18%0.60%0.08%3.5FM98598.50%0.35%0.72%0.25%0.80%0.10%FM9898%0.45%0.86%0.47%0.10%0.10%FM97897.80%0.55%1.10%0.35%0.10%0.10%FM97597.50%0.65%1.25%0.04%0.10%0.10%FM97white97%0.73%1.40%0.45%0.11%0.11%FM97black97%0.75%1.52%0.50%0.13%0.11%